diff --git a/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py b/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py
index be2e2f4..114f7d7 100644
--- a/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py
+++ b/example-projects/tug-of-war-in-the-clouds/aws-boto3-rds-db/start.py
@@ -158,8 +158,8 @@ userDataWebServer = ('#!/bin/bash\n'
                      'yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm\n'
                      '# essential tools\n'
                      'yum install -y joe htop git\n'
-                     '# mysql\n'
-                     'yum install -y httpd php php-mysql\n'
+                     '# httpd and mysql client\n'
+                     'yum install -y httpd php php-mysql mariadb\n'
                      '\n'
                      'service httpd start\n'
                      '\n'